40 inch wall mounted electric fire with LED flames

A fire that hangs on the wall

This is a slim electric fire for rooms without a chimney breast. It hangs on a bracket, so it can go on almost any wall that can take the weight, and it plugs into a normal socket. At about 102 cm wide it is the 40 inch class, the size buyers usually measure by.

The heater blows warm air out of a vent, while LED lights behind the glass create the flames. You can run the flames on their own, which uses far less electricity than the heater.

Provisional product data: this is the type of fire we are preparing to sell. We confirm the exact dimensions, weight and heat output with the final supplier model before it can be ordered.

Where a 40 inch fire works best

A 40 inch fire suits smaller living rooms, bedrooms and snugs, or a chimney breast that is narrower than the room. It looks balanced on a wall of about 2 to 2.5 metres. On a longer wall, or under a large TV, a 50 or 60 inch fire usually looks more in proportion.

Heat output does not grow much with width: most plug-in fires stop at about 2 kW whatever their size. Choose the width for looks and the heat for the room, using our guide to heat output and room size.

Running cost

On the highest setting a 2 kW heater uses 2 kWh of electricity per hour. At the average Ofgem price cap unit rate for Direct Debit customers from 1 October to 31 December 2026, 26.32p per kWh, that is about 53p an hour. On a 1 kW setting it is about 26p. The thermostat switches the heater off when the room is warm, so real costs are usually lower than the full-power figure. Our running cost guide shows how to work it out for your own tariff.